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Future Minimum Payments Under Non-Cancelable Portion of Operating Leases and Non-Cancelable Purchase Commitments (Detail) - Term Loan and Sublicense Agreement $ in Thousands | Sep. 30, 2018 USD ($)
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Future Minimum Payments Under Noncancelable Operating Leases And Purchase Commitments [Line Items] |
2018 (remaining) | $ 6,492
2019 | 15,211
2020 | 12,264
2021 | 5,151
2022 | 5,220
Thereafter | 148,752
Total | $ 193,090

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- Definition Future minimum payments under noncancelable operating leases and purchase commitments. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Operating leases and purchase commitments future minimum payments due. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operating leases and purchase commitments future minimum payments due in five years. + References No definition available. + Details
Name: | dvax_OperatingLeasesAndPurchaseCommitmentsFutureMinimumPaymentsDueInFiveYears
Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operating leases and purchase commitments future minimum payments due in four years. + References No definition available. + Details
Name: | dvax_OperatingLeasesAndPurchaseCommitmentsFutureMinimumPaymentsDueInFourYears
Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Operating leases and purchase commitments future minimum payments due in three years. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operating leases and purchase commitments future minimum payments due in two years. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operating leases and purchase commitments future minimum payments due thereafter. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Operating leases and purchase commitments future minimum payments remainder of fiscal year. + References No definition available. + Details
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Namespace Prefix: | dvax_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |